Padlock.



No. 807,785. PATENTED DEC. 19, 1905. F. SOLEY.

PADLOGK.

APPLICATION rmm APR.12, 1905.

TED STATES PATENT OFFICE.

FRANK SOLEY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO MILLER LOOK COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

PADLOCK- Specification of Letters Patent.

Patented Dec. 19, 1905.

Application filed April 12,, 1905. Serial No. 255,221.

To aZZ whom it nuty concern:

Be it known that I, FRANK SoLnY, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Padlocks, of which the following is a specification.

My invention relates to that class of padlocks in which the pivoted shackle has both a notched nose and a projecting heel, the looking devices engaging with both said notched nose and projecting heel, so as to provide for a double locking of the shackle.

The object of my invention is to simplify the construction of such a lock and to provide for the operation of the same with the expenditure of a minimum amount of power. This object I attain in the manner hereinafter set forth, reference being had to the accompanying drawings, in which Figure 1 represents a front view of the lock with the front half of the cover-plate orcasing removed, the lock being shown in the closed position. Fig. 2 is a similar view showing the lock in the open position. Fig. 3 is a transverse section of the lock on the line a a, Fig. 1; and Fig. 4 is a perspective view of the working parts of the lock detached from the casing and separated one from another.

The lock has a two-part casing 1 and 2, the front and back shells having flanged edges which meet when said shells are secured together by riveting the opposite ends of the various transverse pivot pins or studs with which the lock is provided and which project through appropriate openings formed in the two shells, the flanges being cut away for-the entrance of the nose portion of the shackle 3 and also for the reception of the enlarged butt or hub portion 4 of the same.

The working parts of the lock comprise a locking-plate 5, two tumblers 6 and 7, a series of wards 8, 9, and 10, and a spring 11. The shackle is hung to a pivot-pin 12 and has a notched nose 13, a projecting heel 14, and a projecting toe 15 adjacent thereto. The locking-plate 5 is pivoted to a short stud 16 on the back shell of the casing and has a lug 17 for engaging with the notched nose of the shackle when the latter is closed, as shown in Fig. 1, a portion 18 of the locking-plate also engaging with the heel 14 of the shackle under these circumstances. The tumblers 6 and 7 are hung to a transverse pivot-pin 19 in the casing and have heels 20 to be acted upon by the bits of the key, which is inserted in a slotted and rotatable key-hub 21, journaled in the opposite shells of the casing, said tumblers when in their normal position engaging with the heel 14 of the shackle, as shown in Fig. 1. The wards 8, 9, and 10 of the lock engage the pin 19 and are also notched for engagement with a pin '22 in the casing, so that they are held rigidly in position therein and require that the key shall be notched in a certain way for their reception, the rearmost ward 8 also having a shoulder 23 for engagement with a short bit on the key, so as to limit the turning movement of the same. The spring 11 engages a transverse pin 24 in the casing and has two arms, the lower arm bearing upon the backs of the tumblers 6 and 7 and serving to retain them in the normal position shown in Fig. 1, while the upper arm bears upon the toe 15 of the shackle and serves to swing the latter into the open position when it is free from the influence of the locking devices. The pivoted locking-plate 5 has a projecting pin 25, which engages with a slot 26 in the tumbler 6, so that any movement imparted to said tumbler by the key is transmitted to the locking-plate.

WVhen the lock is closed, the parts are as shown in Fig. 1; but the'action of the key upon the tumblers 6 and 7 serves to adjust the same to the position shown in Fig. 2, thereby withdrawing them from engagement with the heel of the shackle and at the same time causing swinging movement of the locking-plate 5, so as to withdraw it from engagement with said heel and also Withdraw its lug 17 from engagement with the notched nose 13 of the shackle, whereupon the latter is swung open by the action of the spring 11 upon the toe 15, as shown in Fig. 2. hen the key is turned backward or removed, the locking-plate and tumblers resume their normal positions; but in closing the lock the heel 14 of the shackle acts upon the tumblers to first force the same and the locking plate to the position shown in Fig. 2 until the notched nose of the shackle has entered the case, whereupon the heel 14 clears the tumblers and the parts resume their normal or looking position.

By pivoting the locking-plate 5 the operation of the same can be more easily effected than if a sliding locking-plate is used, for the latter has to travel in all of its parts to an extent sufl icient to free its engaging member from the notched nose of the shackle, whereas in the pivoted locking plate the extent of movement decreases toward the fulcrum, and this is important if the locking-plate is frozen to the casing of the look, as the element of leverage possessed by the pivoted lockingplate is of advantage in breaking the ice between the locking-plate and the casing. By connecting the locking-plate to one of the tumblers of the lock the necessityof providing the key with a special bit for actuating the locking-plate is avoided, and it is not necessary. to provide the locking-plate with a special portion for engagement with said bit.

Although I have shown in the present lock two tumblers, the tumbler 6 only might be used in some cases or in other cases there may be more than two tumblers.

Having thus described my invention, I claim and desire to secure by Letters Patent 1. The combination, in a padlock, of a casing, a pivoted shackle, one or more tumblers and a pivoted locking-plate having connection with one of said tumblers whereby it is moved,

substantially as specified.

2. The combination, in a padlock, of a casing, a pivoted shackle having a notched nose and a projecting heel, one or more tumblers engaging said heel and a pivoted locking-plate having connection with one of the tumblers whereby it is moved and also serving to lock the shackle in the closed position, substantially as specified.

3. The combination, in a padlock, of a casing, a pivoted shackle having a notched nose and a projecting heel, one or more tumblers engaging said heel, a locking-plate separate from the tumblers, and connection between said plate and one of the tumblers, said locking-plate serving to lock the shackle in the closed position, by engagement both with the notched nose and projecting heel of the same, substantially as specified.

4. The combination, in a padlock, of a casing, a pivoted shackle having a notched nose and a projecting heel, one or more tumblers engaging said heel and a pivoted locking-plate having connection with one of the tumblers and also serving to lock the shackle in the closed position by engagement both with the notched nose and projecting heel of the same, substantially as specified.

5. The combination, in a padlock, of a casing, a pivoted shackle having a notched nose and a projecting heel, one or more pivoted tumblers engaging said heel, one or more fixed wards alternating with said tumbler or tumblers, and a pivoted locking-plate having connection with one of the tumblers whereby it is moved and constructed to engage and lock the shackle when the latter is in the closed position, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANK SOLEY. Witnesses:

ALLAN J. OAssIDY, In. C. GREUE. 

